3-Bus System (System I)

I. Introduction:

\(\bullet\) This system has 3-phase (3\(\phi\)) fault at the midpoint of each line, as shown in the figure given below.
\(\bullet\) It is considered as one of the most popular test systems in the optimal relay coordination (ORC) problems. It is the system that was used in the first paper published in the literature in 1988.
\(\bullet\) The plug-setting (\(PS\)) is considered discrete in uniform steps of 0.5 A, while the time-multiplier setting (\(TMS\)) is considered continuous. The coordination time interval (\(CTI\)) is equal to 0.2 s. The researcher can change these settings to get a fair comparison with other studies conducted in the literature.
\(\bullet\) In this test system, the transient selectivity constraints are considered too. All the CT ratios (\(CTR\)), the listed P/B relay pairs, the 3\(\phi\) fault at the middle of each line, the generator and line data, and the variable bounds of the relay settings all are given below (click on them for bigger size):

II. Single-Line Diagram:

\(\bullet\) This single-line diagram was drawn by Ali R. Al-Roomi in Dec. 2013 and all the necessary data were coded in MATLAB m-files.

III. Files:

\(\bullet\) System DATA (MATLAB, m-file Format) [Download]
\(\bullet\) Results Tester (MATLAB, m-file Format) [Download]

IV. Citation Policy:

If you publish material based on databases obtained from this repository, then, in your acknowledgments, please note the assistance you received by using this repository. This will help others to obtain the same data sets and replicate your experiments. We suggest the following pseudo-APA reference format for referring to this repository:

Ali R. Al-Roomi (2015). Optimal Relay Coordination Test Systems Repository [https://www.al-roomi.org/coordination]. Halifax, Nova Scotia, Canada: Dalhousie University, Electrical and Computer Engineering.

Here is a BiBTeX citation as well:

@MISC{Al-Roomi2015,
author = {Ali R. Al-Roomi},
title = {{Optimal Relay Coordination Test Systems Repository}},
year = {2015},
address = {Halifax, Nova Scotia, Canada},
institution = {Dalhousie University, Electrical and Computer Engineering},
url = {https://www.al-roomi.org/coordination}
}

V. References:

[1] Ali R. Al-Roomi. Optimal Coordination of Power Protective Devices with Illustrative Examples. Hoboken, New Jersey: Wiley-IEEE Press, 2022.